酸化剤による下水消化汚泥からの重金属の溶出特性に関する研究
書誌事項
- タイトル別名
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- Characteristics of Heavy Metals Elution from Anaerobically Digested Sewage Sludge with Oxidizing Reagents
抄録
The characteristics of heavy metals elution from anaerobically digested sewage sludge with oxidizing reagents were investigated by applying hydrogen peroxide, ferric sulfate or their combination to the sludge under acidic conditions. The application of both hydrogen peroxide and ferric sulfate accelerated the elution of Cd, Cu andZn from the sludge and remarkably improved the elution efficiency of Cu at pH2.<BR>Heavy metals in the sludge were fractionated into three organically bound forms associated with water-soluble proteins, fatsoluble ones and extracellular polymers and residual one. The contents of Cu in the organically bound forms associated with fatsoluble proteins and extracellular polymers and the residual form were significantly decreasedafter the metals elution process with ferric sulfate and hydrogen peroxide at pH 2. These results showed a possibility that hydroxyl radicals produced in the Fenton reaction promote the elution of Cu from the sludge.
収録刊行物
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- 環境工学研究論文集
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環境工学研究論文集 43 311-317, 2006
公益社団法人 土木学会
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詳細情報 詳細情報について
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- CRID
- 1390282679087772416
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- NII論文ID
- 130003949527
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- ISSN
- 1884829X
- 13415115
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可